EVERYDAY SCIENCE - MATTER

Question 2

2 bottles and a cup are connected as shown in the video. The middle bottle is capped. Water is then poured into the cup.

After a while, the cup and the open bottle have the same water level. The final water level in the capped bottle is lower than the other two containers.

matter oeq2.jpg
Answer 1

Fill in the blanks with the keywords provided below.
[increase] • [push] • [lighter] • [escape] • [trapped] • [same] • [decrease] • [occupies space]

a) Explain why the water level in the capped bottle is lower than the others

Answer:

The water level in the capped bottle is lower because air is in the bottle and cannot . The air in the top part of the bottle, pushing down on the water and preventing the water from rising up.


b) What will happen to the water level in the cup and the middle bottle when the cap is removed?

Answer:

The water level in the cup will while the water level in the middle bottle will until the water level in all three containers are the .


c) What will happen to the mass of air in the middle bottle when the cap is removed?

Answer:

When the cap is removed, water will flow into the bottle and air out. The mass of air in the bottle will be .




“See what happens when the cap of the middle bottle is removed.”